Categories: Trojan

TrojanDownloader:Win32/Upatre!pz (file analysis)

The TrojanDownloader:Win32/Upatre!pz is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What TrojanDownloader:Win32/Upatre!pz virus can do?

  • Sample contains Overlay data
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • Authenticode signature is invalid
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Attempts to modify proxy settings

How to determine TrojanDownloader:Win32/Upatre!pz?


File Info:

name: A310F4C15DCB6365A747.mlwpath: /opt/CAPEv2/storage/binaries/042fdbc211cb6a58213aacbeb6d01b64e71f0b609ae458e843b760594b555d17crc32: 8664A7C1md5: a310f4c15dcb6365a74798f529ac6347sha1: 3c25125ecf87511d0ec1e86b92232ccffd786742sha256: 042fdbc211cb6a58213aacbeb6d01b64e71f0b609ae458e843b760594b555d17sha512: c2690ffa0448ea0be9a9aff481329b782391b97c41b3377a34e681b99c203d5e3dbcbc290d197d06c6b57e3c3548a0a7452ff5596d376cd96879547b88eb5053ssdeep: 192:sHO6OI9TsYev1mjTfg5YG5H7pLWCW/vYxYhyfKdrwP69PUqP1:vI9TawPgWG5b+YHywCNUs1type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1037237386FD61AB6E377DAF385F396C6A935F132B513CA0D80DB0B440813A56AD90D1Esha3_384: ebc99be83fda678d6f4c695c0b5a691da9196cc37439e760ff4e9584511874ec165f07e93f63c985180095e286a0680cep_bytes: 558becb83c200000e893030000535657timestamp: 2013-09-11 14:39:41

Version Info:

0: [No Data]

TrojanDownloader:Win32/Upatre!pz also known as:

Bkav W32.AIDetectMalware
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.71194611
ClamAV Win.Downloader.Upatre-6746951-0
CAT-QuickHeal Trojan.Mauvaise.SL1
Skyhigh BehavesLike.Win32.Downloader.lz
McAfee Downloader-FBWV!A310F4C15DCB
Malwarebytes Generic.Malware.AI.DDS
Zillya Downloader.Small.Win32.71821
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan-Downloader ( 00456a071 )
K7AntiVirus Trojan-Downloader ( 0050fef41 )
Baidu Win32.Trojan-Downloader.Waski.k
VirIT Trojan.Win32.Generic.BSZC
Symantec Downloader.Upatre!gm
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/TrojanDownloader.Small.PRL
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.GenericKD.71194611
NANO-Antivirus Trojan.Win32.DownLoad3.cqsjfu
SUPERAntiSpyware Trojan.Agent/Gen-Upatre
Avast Win32:Downloader-WID [Trj]
Tencent Trojan.Win32.Downloader.wf
Emsisoft Trojan.GenericKD.71194611 (B)
F-Secure Trojan.TR/Dropper.Gen
DrWeb Trojan.DownLoader26.64201
VIPRE Trojan.GenericKD.71194611
TrendMicro TROJ_UPATRE.SMAS
Trapmine malicious.high.ml.score
FireEye Generic.mg.a310f4c15dcb6365
Sophos Troj/Upatre-XZ
Ikarus Trojan-Downloader.Win32.Upatre
GData Win32.Trojan.PSE.12DMSKF
Jiangmin TrojanDownloader.Genome.acpr
Webroot W32.Malware.Gen
Google Detected
Avira TR/Dropper.Gen
Antiy-AVL Trojan/Win32.Waski.a
Kingsoft malware.kb.a.1000
Xcitium TrojWare.Win32.TrojanDownloader.Upatre.ACC@56yhj8
Arcabit Trojan.Generic.D43E57F3
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft TrojanDownloader:Win32/Upatre!pz
Varist W32/Trojan3.AQGI
AhnLab-V3 Trojan/Win32.Zbot.R83549
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaE.36744.bmY@aGKDNwf
ALYac Trojan.GenericKD.71194611
MAX malware (ai score=83)
VBA32 Trojan.Downloader
Cylance unsafe
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_UPATRE.SMAS
Rising Downloader.Waski!1.A489 (CLASSIC)
Yandex Trojan.GenAsa!LXiB97J6ZtU
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Upatre.Gen
Fortinet W32/Tiny.NIV!tr
AVG Win32:Downloader-WID [Trj]
Cybereason malicious.ecf875
DeepInstinct MALICIOUS

How to remove TrojanDownloader:Win32/Upatre!pz?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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